This isn't exactly pertinent to FLT, but given that today is $\pi$ Day, I thought I'd include a link to The Tau Manifesto, a website that advocates the idea that defining the circle constant by $\dfrac{circumference}{radius}$ makes more sense than $\dfrac{circumference}{diameter}.$ Once you read/watch this, you'll never think about $\pi$ the same way again.

===Matt===

This was a nice conclusion to the unit on number theory, and thank you to Matt for his contribution of the Tau Manifesto. It certainly is a compelling case for changing the way we look at pi, the circumference-diameter ratio, and the circle area formula.

If you're looking more into cyclotomic fields like I am (it was a lot to take in), you might want to look at it's Wiki, which isn't too technical and which I found to be far less technical than other views I found elsewhere.

I hope everyone has a great break!

==Rob Moray==

The tau manifesto video was very interesting! I was convinced when he started talking about radian angle measurements.

-Angela

I really enjoy the reading on tau and the video. The discussion on Pi and tau is obvious. The 3.14159265 has been known as constant to the circumference. Tau is just a double of Pi as the radius a double of the radius. Any way they all have been conventionally accepted.
Jean Mars